Lamp-wick



PATBNTBD MAR. 1, 1904.

A. H. NELSON.

LAMP WIOK. APPLICATION FILED JULY 8,1903.

NO MODELv WlT/VESSES v W UNITED STATES Patented March 1, 1904.

ALBERT H. NELSON, OF LEWISTON, MAINE.

LAMP-WICK.

SPECIFICATION forming part of Letters Patent No. 753,299, dated March 1, 1904.

Application filed July 8, 1903. Serial 110,184,727. (No model.)

To all whom it may concern.-

clear, and exact description of the invention,

such as will enable others skilled in the art to 1 which it appertains to make and use the same. My invention relates to improvements in lamp-wicks, and more-particularly to the proc-, ess of making the same, the object of the invention being to produce a lamp-wick having an indestructible end portion which shall be so constructed that when in use the flame shall be large, clear, and brilliant and which shall not give oif either smoke or smell. H

,With this object'in view the invention consists in certain novel steps in the process of making the wick and in certain novel features of'construction, as hereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of the wick, and Fig. 2 is a sectional view;

In making my improved wick I take a piece of ordinary wick fabric and treat the end portion of the same in a bath of sal-ammoniac, boracic acid, sodium biborate, and water in the proportions substantially as follows: three parts of sal-ammoniac dissolved with two parts of boracic acid and one part of sodium biborate in about three times their bulk of water. This solution israise'd to the boiling-point, and the end of the wick is cooked therein, letting the wick remain in the solution a sujiicient length of time to become thoroughly impregnated with the compound. The wick is then dried and incased in brass tubing, to which it is fastened in any suitable manner. The treated end of the wick is then trimmed, andthe treated tip is then dipped in'a solution of three parts of sal-ammoniac, three parts of boracic. acid, and one part of sodium biborate in about three times their bulk of water, said solution being first raised to the boiling-point. The wick after drying is ready for use.

I My improvements are simple and result in the production-of a Wick having an indestructible tip capable of. efficiently performing all the function's ascribed to it.

Having'fully described my invention, what I claim as new, and desire to secure by Letters Patent, i's

1. The herein-described process of making van indestructible lamp wick, consisting in cooking the mid portion of a fiberwick in asolution ofsal-ammoniac, boracic acid, sodium 1 biborate and water in the proportions substantially as specified; drying the treated portion of the wick and afterward immersing the said treated portion of the wick in a boiling solution of sal-ammoniac, boracic acid, sodium biborate and water in the proportions substantially as specified.

2. A fiber wick having its end portion impregnated with sal-ammoniac, boracic acid and sodium biborate. v

- In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ALBERT H. NELSON.

I Witnesses: I

JAMES A.' PULSIFER, CORNELIA 'PULSIFER. 

